What is Wrong with my Car?

[Neo0019]

My 02 Nissan Maxima has develped a few issues, maybe someone here could give me a strait answer.

Well Nothing electronic inside of the car works, I mean noting the radio, AC/Heater, the windows, side mirros, Speedometer ( Works sometimes ) RPM, Fuel, Hot/Cold, Seats, Nothing.

The other issue is when the Speedometer doesnt work the Transmission wont shift properly, Reverse, Park, work fine but the rest gears wont work properly, D, will only give one gear and so on.

I honestly don't know what the problem could be with the car, I will really appreciated any help or Diagnost anybody here could give.

Thanks alot.

[Beancooker]

Have you checked the main fuse under the hood? If not, start there. Unfortunately, I have to go to sleep.

I'll check this thread from work in the morning.

[Neo0019]

No I haven't I'll give it a check in the morning, I honestly don't know what to do I took it to dealer, so they can connect the computer to see what could be wrong, Nothing!

[AZhitman]

Sounds like body control module, but we need more info.

Car runs fine?

The intermittent speedo and shifting issue is likely seperate.

Did you buy this car used? Perhaps from Louisiana?

[Neo0019]

Sounds like body control module, but we need more info.

Car runs fine?

The intermittent speedo and shifting issue is likely seperate.

Did you buy this car used? Perhaps from Louisiana?

I mean yes the car runs fine, the Engine sounds great is in great condition. What is weird about the shifting, and speedo is that they work some times and, sometimes don't I mean the RMP, Fuel, and H/C reader don't work at all, the speedo is the only that works, only sometimes.

[Neo0019]

Took another chance, and I hook it up the computer again, it told me to replace the oxigen sensor, I did but it did not fix the problem. figures

[Beancooker]

I'm with Greg (AZhitman) on this one. Sounds like it could be the BCM. I'd still check the main fuses, but I think G is correct.

[Neo0019]

I'm with Greg (AZhitman) on this one. Sounds like it could be the BCM. I'd still check the main fuses, but I think G is correct.

OK would that fix all the issues.?

[MaximA32]

Definitely sounds like a BCM to me. If you bought the car used and more recently, I'd take it back to where you got it and tell them what's up. Electrical issues are not fun.

Here's what I would do.1. Check the wiring harness that runs over the left front strut tower for any signs of damage and/or breakage. The 5th gen Maximas are prone for that breakage.

2. If there is no breakage, check your ECM for burnt circuits. If there are, replace the front and rear engine mounts because they have a notorious history of causing ECM damage due to faulty design.

[Neo0019]

Definitely sounds like a BCM to me. If you bought the car used and more recently, I'd take it back to where you got it and tell them what's up. Electrical issues are not fun.

Here's what I would do.1. Check the wiring harness that runs over the left front strut tower for any signs of damage and/or breakage. The 5th gen Maximas are prone for that breakage.

2. If there is no breakage, check your ECM for burnt circuits. If there are, replace the front and rear engine mounts because they have a notorious history of causing ECM damage due to faulty design.

Ok I'll post back with my findings, but would this problems cause the Trany to act the way is acting?

[Neo0019]

Sounds like body control module, but we need more info.

Car runs fine?

The intermittent speedo and shifting issue is likely seperate.

Did you buy this car used? Perhaps from Louisiana?

Well after looking around, we've found that the car in fact has sustaing water damaged, like you predicted the mechanic told me that there is alot of rust on some of the boards like, the drivers side window board, and so on he would like to keep the car until friday to tell me the extend of the damage, I honestly don't want to expend alot of money, Like most of us, but when I told him about the BCM, he told me it was damaged but he didn't look like he knew what I was talking about.

My question would be, I haven't purchase the vehicle yet is an 02, with 77,500 miles on it and a friend is selling it to me for less than $4,000.00. Is this a project that a person like me could do, I mean i'm not a mechanic and I don't know much about cars, i'm average at best, would this car be worth the extra cash, and if I decided to go with the car and fix it how likely it would be for new problems to come and hunt me, finally where would be a good place for me to get most, if not all of the parts I'll be need it for this, are the Trans problems separete or related to the current issues the vehicle is having.

Thanks alot.

[Mike G]

Personally, I think you should walk away from this one, unless you are a pretty competent mechanic, you might have a shot. Was the car totalled as a water damage vehicle? If so, you may not be able to insure it after you buy it. There is a reason your "freind" is selling it so cheap, he doesn't want to deal with it's problems either.

Just my $.02's --Mike

[Neo0019]

Personally, I think you should walk away from this one, unless you are a pretty competent mechanic, you might have a shot. Was the car totalled as a water damage vehicle? If so, you may not be able to insure it after you buy it. There is a reason your "freind" is selling it so cheap, he doesn't want to deal with it's problems either.

Just my $.02's --Mike

I do understand where you're coming from Mike, Thanks for your honesty. The car was not total as a damage water vehicle, and the car is fully insurable by any company, there isn't any water smell or damaged in the carpets or leather seats. I haven't commit to buy the car Yet I'm looking for some answers and solutions to the problem, from people that have nothing to gaing from the situation, like you Mike I don't want to listen to him or to any mechanic with out having any knowledge about the situation.

Like I said before I would love to drive this car around, but I just would love to find out what is wrong, look at the problem find out how much it will be, and than make a decision on it.

What would be the problems that I would encouter other than the obious ones I have, from water damaged to this type of vehicle.?

[Beancooker]

Without the water damage, the car is worth $12k+. So there is definitely something seriously wrong with it, if it's getting sold at 75% off.

That is a gamble you may, or may not want to take. Could be an easy fix, and fairly cheap 02 maxima, or it could easily cost you another $5k+. It's definitely a risk.

[Neo0019]

I know beleive me, my problem honestly is the transmission if I were to know for sure that the Trans is 100% ok, and that the problems the Trans is having, that today it may work, tomorrow will only partially work and so on, I would think about purchasing the vehicle, but the question about the Trans is what is keeping me from giving the car a serious though.

I think that water damage and all the car is worth 3,000.00.